CVE-2023-40289Public exploitNetwork attack vector

BMC root command execution via unvalidated email address

Published Mar 27, 2024 · Updated Aug 6, 2024

Command injection in Supermicro X11SAE-F, X11SSM-F, and X11SSE-F firmware 1.66 allows remote authenticated users to execute commands as BMC root. The BMC web server stores the alert mail parameter and later interpolates it without adequate validation into an msmtp shell command passed to popen. Exploitation requires BMC administrator credentials and a test-alert trigger, after which commands run with root control over the BMC.

CVSS severity7.2
High
EPSS probability17.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Supermicro X11SAE-F, X11SSM-F, and X11SSE-F firmware 1.66 allows remote authenticated users to execute commands as BMC root. The BMC web server stores the alert mail parameter and later interpolates it without adequate validation into an msmtp shell command passed to popen. Exploitation requires BMC administrator credentials and a test-alert trigger, after which commands run with root control over the BMC.

The record

CVE
CVE-2023-40289
Published
Mar 27, 2024
Updated
Aug 6, 2024
Vendor
Supermicro
Product
X11SAE-F
Classifications
CWE-269, CWE-78, T1059, T1068
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.66

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Supermicro · X11SAE-Fversion=1.66
Supermicro · X11SSM-Fversion=1.66
Supermicro · X11SSE-Fversion=1.66

Published CVSS scores

7.2SupermicroCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-269Improper Privilege Management
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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